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Fix regression for loc and __setitem__ when one-dimensional tuple was given for MultiIndex #37787

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Merged
merged 8 commits into from
Nov 14, 2020
Merged

Fix regression for loc and __setitem__ when one-dimensional tuple was given for MultiIndex #37787

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8ccfd5a
Fix regression for loc and __setitem__ when one-dimensional tuple was…
phofl Nov 12, 2020
8113cf4
Use fixture to parametrize test
phofl Nov 12, 2020
5944255
Move whatsnew and remove pass
phofl Nov 13, 2020
3ac69ff
Merge branch 'master' of https://github.com/pandas-dev/pandas into 37711
phofl Nov 13, 2020
e3f90be
Add new test
phofl Nov 13, 2020
2f8c6ed
Run black
phofl Nov 13, 2020
cc15da3
FIx typo
phofl Nov 14, 2020
f8c86f5
Merge branch 'master' of https://github.com/pandas-dev/pandas into 37711
phofl Nov 14, 2020
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@phofl
phofl committed Nov 13, 2020
commit e3f90be43b0e64ed4b1b33e6c1ee6d43ec0357b6
9 changes: 9 additions & 0 deletions pandas/tests/indexing/multiindex/test_loc.py
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Expand Up @@ -296,6 +296,15 @@ def test_multiindex_loc_one_dimensional_tuple(self, frame_or_series):
expected = frame_or_series([0, 2], index=mi)
tm.assert_equal(obj, expected)

@pytest.mark.parametrize("indexer", [('a',), ('a')])
def test_multiindex_one_dimensiona_tuple_columns(self, indexer):
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typo dimensional?

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Yep, thx. Fixed

# GH#37711
mi = MultiIndex.from_tuples([("a", "A"), ("b", "A")])
obj = DataFrame([1, 2], index=mi)
obj.loc[indexer, :] = 0
expected = DataFrame([0, 2], index=mi)
tm.assert_frame_equal(obj, expected)


@pytest.mark.parametrize(
"indexer, pos",
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